./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:41,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:41,786 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 21:59:41,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:41,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:41,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:41,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:41,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:41,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:41,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:41,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:41,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:41,831 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:41,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:41,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:41,835 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:41,836 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:41,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:41,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:41,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:41,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:41,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:41,840 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 21:59:41,840 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:41,840 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:41,841 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:41,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:41,842 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:41,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:41,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:41,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:41,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:41,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:41,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:41,846 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:41,846 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:41,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:41,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:41,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:41,847 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:41,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:41,848 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c6ecf58df9dd6f4f380af0d7ef563f293bde5430d47e04b9ba5ac44168fc198 [2024-10-31 21:59:42,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:42,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:42,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:42,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:42,226 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:42,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c Unable to find full path for "g++" [2024-10-31 21:59:44,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:44,887 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:44,887 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2024-10-31 21:59:44,898 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/data/c35428e2a/6dcd6ce02b3f4bcfa4b2ed0a59842253/FLAG3cb334efb [2024-10-31 21:59:44,914 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/data/c35428e2a/6dcd6ce02b3f4bcfa4b2ed0a59842253 [2024-10-31 21:59:44,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:44,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:44,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:44,920 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:44,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:44,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:44" (1/1) ... [2024-10-31 21:59:44,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10378107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:44, skipping insertion in model container [2024-10-31 21:59:44,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:44" (1/1) ... [2024-10-31 21:59:44,973 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:45,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:45,273 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:45,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:45,349 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:45,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45 WrapperNode [2024-10-31 21:59:45,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:45,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:45,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:45,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:45,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,407 INFO L138 Inliner]: procedures = 24, calls = 31, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 248 [2024-10-31 21:59:45,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:45,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:45,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:45,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:45,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:45,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:45,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:45,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:45,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:45,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:45,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:45,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cebb59f-6e20-4ad2-a722-6675bfc8accd/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 21:59:45,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 21:59:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 21:59:45,589 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 21:59:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 21:59:45,589 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 21:59:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 21:59:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 21:59:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 21:59:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:45,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 21:59:45,614 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:59:45,806 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:45,809 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:46,845 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:59:46,845 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:46,892 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:46,892 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 21:59:46,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:46 BoogieIcfgContainer [2024-10-31 21:59:46,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:46,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:46,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:46,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:46,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:44" (1/3) ... [2024-10-31 21:59:46,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1700562c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:46, skipping insertion in model container [2024-10-31 21:59:46,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (2/3) ... [2024-10-31 21:59:46,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1700562c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:46, skipping insertion in model container [2024-10-31 21:59:46,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:46" (3/3) ... [2024-10-31 21:59:46,905 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2024-10-31 21:59:46,927 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:46,927 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2024-10-31 21:59:46,928 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:59:47,193 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 21:59:47,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 632 places, 655 transitions, 1331 flow [2024-10-31 21:59:47,632 INFO L124 PetriNetUnfolderBase]: 33/652 cut-off events. [2024-10-31 21:59:47,632 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 21:59:47,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 652 events. 33/652 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1718 event pairs, 0 based on Foata normal form. 0/542 useless extension candidates. Maximal degree in co-relation 493. Up to 3 conditions per place. [2024-10-31 21:59:47,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 632 places, 655 transitions, 1331 flow [2024-10-31 21:59:47,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 632 transitions, 1282 flow [2024-10-31 21:59:47,696 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:47,714 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e8c67c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:47,714 INFO L334 AbstractCegarLoop]: Starting to check reachability of 137 error locations. [2024-10-31 21:59:47,727 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:47,728 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-31 21:59:47,728 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:47,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:47,729 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:47,730 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 21:59:47,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:47,741 INFO L85 PathProgramCache]: Analyzing trace with hash 452336704, now seen corresponding path program 1 times [2024-10-31 21:59:47,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:47,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784947327] [2024-10-31 21:59:47,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:47,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:48,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:48,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784947327] [2024-10-31 21:59:48,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784947327] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:48,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:48,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:48,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338005180] [2024-10-31 21:59:48,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:48,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:48,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:48,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:48,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:48,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 655 [2024-10-31 21:59:48,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 611 places, 632 transitions, 1282 flow. Second operand has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:48,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:48,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 655 [2024-10-31 21:59:48,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:48,885 INFO L124 PetriNetUnfolderBase]: 78/1518 cut-off events. [2024-10-31 21:59:48,885 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-31 21:59:48,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1518 events. 78/1518 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9253 event pairs, 20 based on Foata normal form. 30/1249 useless extension candidates. Maximal degree in co-relation 1200. Up to 50 conditions per place. [2024-10-31 21:59:48,925 INFO L140 encePairwiseOnDemand]: 639/655 looper letters, 13 selfloop transitions, 2 changer transitions 7/618 dead transitions. [2024-10-31 21:59:48,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 618 transitions, 1284 flow [2024-10-31 21:59:48,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:48,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:48,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1898 transitions. [2024-10-31 21:59:48,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9659033078880407 [2024-10-31 21:59:48,950 INFO L175 Difference]: Start difference. First operand has 611 places, 632 transitions, 1282 flow. Second operand 3 states and 1898 transitions. [2024-10-31 21:59:48,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 612 places, 618 transitions, 1284 flow [2024-10-31 21:59:48,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 618 transitions, 1272 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 21:59:48,978 INFO L231 Difference]: Finished difference. Result has 606 places, 611 transitions, 1232 flow [2024-10-31 21:59:48,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1242, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1232, PETRI_PLACES=606, PETRI_TRANSITIONS=611} [2024-10-31 21:59:48,987 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -5 predicate places. [2024-10-31 21:59:48,988 INFO L471 AbstractCegarLoop]: Abstraction has has 606 places, 611 transitions, 1232 flow [2024-10-31 21:59:48,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:48,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:48,992 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:48,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:48,994 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 21:59:48,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:48,995 INFO L85 PathProgramCache]: Analyzing trace with hash 2119054710, now seen corresponding path program 1 times [2024-10-31 21:59:48,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:48,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745654472] [2024-10-31 21:59:48,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:48,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:49,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:49,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745654472] [2024-10-31 21:59:49,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745654472] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:49,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:49,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788870585] [2024-10-31 21:59:49,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:49,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:49,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:49,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:49,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:49,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 655 [2024-10-31 21:59:49,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 611 transitions, 1232 flow. Second operand has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:49,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:49,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 655 [2024-10-31 21:59:49,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:49,587 INFO L124 PetriNetUnfolderBase]: 50/1054 cut-off events. [2024-10-31 21:59:49,588 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 21:59:49,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 1054 events. 50/1054 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5195 event pairs, 12 based on Foata normal form. 0/869 useless extension candidates. Maximal degree in co-relation 1068. Up to 38 conditions per place. [2024-10-31 21:59:49,625 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/610 dead transitions. [2024-10-31 21:59:49,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 610 transitions, 1260 flow [2024-10-31 21:59:49,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:49,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:49,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1885 transitions. [2024-10-31 21:59:49,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9592875318066157 [2024-10-31 21:59:49,631 INFO L175 Difference]: Start difference. First operand has 606 places, 611 transitions, 1232 flow. Second operand 3 states and 1885 transitions. [2024-10-31 21:59:49,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 610 transitions, 1260 flow [2024-10-31 21:59:49,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 610 transitions, 1256 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:49,644 INFO L231 Difference]: Finished difference. Result has 598 places, 610 transitions, 1230 flow [2024-10-31 21:59:49,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=596, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1230, PETRI_PLACES=598, PETRI_TRANSITIONS=610} [2024-10-31 21:59:49,646 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -13 predicate places. [2024-10-31 21:59:49,646 INFO L471 AbstractCegarLoop]: Abstraction has has 598 places, 610 transitions, 1230 flow [2024-10-31 21:59:49,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:49,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:49,648 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:49,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:49,649 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 21:59:49,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:49,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1745260268, now seen corresponding path program 1 times [2024-10-31 21:59:49,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:49,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855466310] [2024-10-31 21:59:49,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:49,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:49,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:49,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855466310] [2024-10-31 21:59:49,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855466310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:49,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:49,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:49,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231474692] [2024-10-31 21:59:49,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:49,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:49,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:49,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:49,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:49,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 655 [2024-10-31 21:59:49,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 610 transitions, 1230 flow. Second operand has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:49,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:49,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 655 [2024-10-31 21:59:49,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:50,260 INFO L124 PetriNetUnfolderBase]: 78/1485 cut-off events. [2024-10-31 21:59:50,261 INFO L125 PetriNetUnfolderBase]: For 13/17 co-relation queries the response was YES. [2024-10-31 21:59:50,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1546 conditions, 1485 events. 78/1485 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8424 event pairs, 20 based on Foata normal form. 0/1206 useless extension candidates. Maximal degree in co-relation 1501. Up to 50 conditions per place. [2024-10-31 21:59:50,290 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/609 dead transitions. [2024-10-31 21:59:50,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 609 transitions, 1258 flow [2024-10-31 21:59:50,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:50,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:50,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1885 transitions. [2024-10-31 21:59:50,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9592875318066157 [2024-10-31 21:59:50,297 INFO L175 Difference]: Start difference. First operand has 598 places, 610 transitions, 1230 flow. Second operand 3 states and 1885 transitions. [2024-10-31 21:59:50,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 609 transitions, 1258 flow [2024-10-31 21:59:50,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 609 transitions, 1254 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:50,308 INFO L231 Difference]: Finished difference. Result has 597 places, 609 transitions, 1228 flow [2024-10-31 21:59:50,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=595, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1228, PETRI_PLACES=597, PETRI_TRANSITIONS=609} [2024-10-31 21:59:50,310 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -14 predicate places. [2024-10-31 21:59:50,310 INFO L471 AbstractCegarLoop]: Abstraction has has 597 places, 609 transitions, 1228 flow [2024-10-31 21:59:50,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:50,312 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:50,312 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:50,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:50,313 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 21:59:50,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:50,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1138626604, now seen corresponding path program 1 times [2024-10-31 21:59:50,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:50,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037373169] [2024-10-31 21:59:50,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:50,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:50,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:50,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037373169] [2024-10-31 21:59:50,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037373169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:50,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:50,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:50,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999371819] [2024-10-31 21:59:50,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:50,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:50,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:50,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:50,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:50,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 655 [2024-10-31 21:59:50,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 609 transitions, 1228 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:50,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:50,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 655 [2024-10-31 21:59:50,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:50,939 INFO L124 PetriNetUnfolderBase]: 88/1786 cut-off events. [2024-10-31 21:59:50,940 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 21:59:50,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 1786 events. 88/1786 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 11593 event pairs, 20 based on Foata normal form. 0/1448 useless extension candidates. Maximal degree in co-relation 1803. Up to 51 conditions per place. [2024-10-31 21:59:50,979 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 14 selfloop transitions, 2 changer transitions 0/608 dead transitions. [2024-10-31 21:59:50,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 608 transitions, 1258 flow [2024-10-31 21:59:50,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:50,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:50,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1883 transitions. [2024-10-31 21:59:50,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9582697201017811 [2024-10-31 21:59:50,985 INFO L175 Difference]: Start difference. First operand has 597 places, 609 transitions, 1228 flow. Second operand 3 states and 1883 transitions. [2024-10-31 21:59:50,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 608 transitions, 1258 flow [2024-10-31 21:59:50,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 596 places, 608 transitions, 1254 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:50,996 INFO L231 Difference]: Finished difference. Result has 596 places, 608 transitions, 1226 flow [2024-10-31 21:59:50,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1222, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1226, PETRI_PLACES=596, PETRI_TRANSITIONS=608} [2024-10-31 21:59:50,998 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -15 predicate places. [2024-10-31 21:59:50,999 INFO L471 AbstractCegarLoop]: Abstraction has has 596 places, 608 transitions, 1226 flow [2024-10-31 21:59:51,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:51,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:51,001 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:51,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:59:51,002 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 21:59:51,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:51,003 INFO L85 PathProgramCache]: Analyzing trace with hash -392882240, now seen corresponding path program 1 times [2024-10-31 21:59:51,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:51,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521487230] [2024-10-31 21:59:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:51,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:51,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:51,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521487230] [2024-10-31 21:59:51,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521487230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:51,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:51,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:51,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355379903] [2024-10-31 21:59:51,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:51,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:51,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:51,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:51,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:51,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 655 [2024-10-31 21:59:51,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 608 transitions, 1226 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:51,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:51,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 655 [2024-10-31 21:59:51,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:51,453 INFO L124 PetriNetUnfolderBase]: 50/1089 cut-off events. [2024-10-31 21:59:51,453 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-10-31 21:59:51,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1141 conditions, 1089 events. 50/1089 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5540 event pairs, 12 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1080. Up to 39 conditions per place. [2024-10-31 21:59:51,483 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 14 selfloop transitions, 2 changer transitions 0/607 dead transitions. [2024-10-31 21:59:51,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 607 transitions, 1256 flow [2024-10-31 21:59:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:51,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:51,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1883 transitions. [2024-10-31 21:59:51,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9582697201017811 [2024-10-31 21:59:51,488 INFO L175 Difference]: Start difference. First operand has 596 places, 608 transitions, 1226 flow. Second operand 3 states and 1883 transitions. [2024-10-31 21:59:51,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 607 transitions, 1256 flow [2024-10-31 21:59:51,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 607 transitions, 1252 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:51,501 INFO L231 Difference]: Finished difference. Result has 595 places, 607 transitions, 1224 flow [2024-10-31 21:59:51,502 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1220, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=605, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1224, PETRI_PLACES=595, PETRI_TRANSITIONS=607} [2024-10-31 21:59:51,505 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -16 predicate places. [2024-10-31 21:59:51,506 INFO L471 AbstractCegarLoop]: Abstraction has has 595 places, 607 transitions, 1224 flow [2024-10-31 21:59:51,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:51,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:51,508 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:51,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:59:51,508 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 21:59:51,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:51,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1194727645, now seen corresponding path program 1 times [2024-10-31 21:59:51,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:51,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165187520] [2024-10-31 21:59:51,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:51,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:51,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:51,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165187520] [2024-10-31 21:59:51,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165187520] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:51,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:51,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:51,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820272745] [2024-10-31 21:59:51,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:51,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:51,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:51,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:51,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:51,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 655 [2024-10-31 21:59:51,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 607 transitions, 1224 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:51,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:51,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 655 [2024-10-31 21:59:51,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:51,884 INFO L124 PetriNetUnfolderBase]: 48/866 cut-off events. [2024-10-31 21:59:51,884 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2024-10-31 21:59:51,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 866 events. 48/866 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3777 event pairs, 20 based on Foata normal form. 0/728 useless extension candidates. Maximal degree in co-relation 859. Up to 51 conditions per place. [2024-10-31 21:59:51,907 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 14 selfloop transitions, 2 changer transitions 0/606 dead transitions. [2024-10-31 21:59:51,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 596 places, 606 transitions, 1254 flow [2024-10-31 21:59:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:51,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1883 transitions. [2024-10-31 21:59:51,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9582697201017811 [2024-10-31 21:59:51,912 INFO L175 Difference]: Start difference. First operand has 595 places, 607 transitions, 1224 flow. Second operand 3 states and 1883 transitions. [2024-10-31 21:59:51,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 596 places, 606 transitions, 1254 flow [2024-10-31 21:59:51,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 594 places, 606 transitions, 1250 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:51,923 INFO L231 Difference]: Finished difference. Result has 594 places, 606 transitions, 1222 flow [2024-10-31 21:59:51,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1218, PETRI_DIFFERENCE_MINUEND_PLACES=592, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1222, PETRI_PLACES=594, PETRI_TRANSITIONS=606} [2024-10-31 21:59:51,924 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -17 predicate places. [2024-10-31 21:59:51,925 INFO L471 AbstractCegarLoop]: Abstraction has has 594 places, 606 transitions, 1222 flow [2024-10-31 21:59:51,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:51,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:51,926 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:51,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:59:51,927 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 21:59:51,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:51,928 INFO L85 PathProgramCache]: Analyzing trace with hash -420121175, now seen corresponding path program 1 times [2024-10-31 21:59:51,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:51,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986561951] [2024-10-31 21:59:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:51,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:51,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:51,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:51,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986561951] [2024-10-31 21:59:51,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986561951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:51,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:51,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:51,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932086567] [2024-10-31 21:59:51,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:51,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:51,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:51,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:51,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:52,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 655 [2024-10-31 21:59:52,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 606 transitions, 1222 flow. Second operand has 3 states, 3 states have (on average 619.0) internal successors, (1857), 3 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:52,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:52,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 655 [2024-10-31 21:59:52,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:52,672 INFO L124 PetriNetUnfolderBase]: 165/2324 cut-off events. [2024-10-31 21:59:52,673 INFO L125 PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES. [2024-10-31 21:59:52,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2512 conditions, 2324 events. 165/2324 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 17869 event pairs, 64 based on Foata normal form. 0/1904 useless extension candidates. Maximal degree in co-relation 2435. Up to 151 conditions per place. [2024-10-31 21:59:52,713 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 16 selfloop transitions, 1 changer transitions 0/601 dead transitions. [2024-10-31 21:59:52,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 601 transitions, 1246 flow [2024-10-31 21:59:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:52,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:52,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1876 transitions. [2024-10-31 21:59:52,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.95470737913486 [2024-10-31 21:59:52,718 INFO L175 Difference]: Start difference. First operand has 594 places, 606 transitions, 1222 flow. Second operand 3 states and 1876 transitions. [2024-10-31 21:59:52,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 601 transitions, 1246 flow [2024-10-31 21:59:52,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 601 transitions, 1242 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:52,728 INFO L231 Difference]: Finished difference. Result has 589 places, 601 transitions, 1210 flow [2024-10-31 21:59:52,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1208, PETRI_DIFFERENCE_MINUEND_PLACES=587, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1210, PETRI_PLACES=589, PETRI_TRANSITIONS=601} [2024-10-31 21:59:52,731 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -22 predicate places. [2024-10-31 21:59:52,731 INFO L471 AbstractCegarLoop]: Abstraction has has 589 places, 601 transitions, 1210 flow [2024-10-31 21:59:52,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.0) internal successors, (1857), 3 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:52,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:52,733 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:52,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:59:52,733 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 21:59:52,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:52,734 INFO L85 PathProgramCache]: Analyzing trace with hash 237991042, now seen corresponding path program 1 times [2024-10-31 21:59:52,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:52,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129055364] [2024-10-31 21:59:52,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:52,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:52,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:52,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129055364] [2024-10-31 21:59:52,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129055364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:52,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:52,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:52,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980588716] [2024-10-31 21:59:52,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:52,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:52,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:52,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:52,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:52,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 655 [2024-10-31 21:59:52,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 589 places, 601 transitions, 1210 flow. Second operand has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:52,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:52,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 655 [2024-10-31 21:59:52,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:53,367 INFO L124 PetriNetUnfolderBase]: 88/1774 cut-off events. [2024-10-31 21:59:53,368 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-10-31 21:59:53,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1774 events. 88/1774 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 10573 event pairs, 20 based on Foata normal form. 0/1446 useless extension candidates. Maximal degree in co-relation 1765. Up to 50 conditions per place. [2024-10-31 21:59:53,403 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/600 dead transitions. [2024-10-31 21:59:53,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 600 transitions, 1238 flow [2024-10-31 21:59:53,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:53,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1885 transitions. [2024-10-31 21:59:53,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9592875318066157 [2024-10-31 21:59:53,409 INFO L175 Difference]: Start difference. First operand has 589 places, 601 transitions, 1210 flow. Second operand 3 states and 1885 transitions. [2024-10-31 21:59:53,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 590 places, 600 transitions, 1238 flow [2024-10-31 21:59:53,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 600 transitions, 1237 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:59:53,423 INFO L231 Difference]: Finished difference. Result has 589 places, 600 transitions, 1211 flow [2024-10-31 21:59:53,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1207, PETRI_DIFFERENCE_MINUEND_PLACES=587, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1211, PETRI_PLACES=589, PETRI_TRANSITIONS=600} [2024-10-31 21:59:53,426 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -22 predicate places. [2024-10-31 21:59:53,427 INFO L471 AbstractCegarLoop]: Abstraction has has 589 places, 600 transitions, 1211 flow [2024-10-31 21:59:53,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:53,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:53,429 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:53,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:59:53,429 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 21:59:53,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:53,430 INFO L85 PathProgramCache]: Analyzing trace with hash 233819493, now seen corresponding path program 1 times [2024-10-31 21:59:53,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:53,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686375726] [2024-10-31 21:59:53,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:53,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:54,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:54,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686375726] [2024-10-31 21:59:54,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686375726] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:54,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:54,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:54,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790363278] [2024-10-31 21:59:54,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:54,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:54,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:54,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:54,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:54,804 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 544 out of 655 [2024-10-31 21:59:54,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 589 places, 600 transitions, 1211 flow. Second operand has 6 states, 6 states have (on average 545.5) internal successors, (3273), 6 states have internal predecessors, (3273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:54,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:54,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 544 of 655 [2024-10-31 21:59:54,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:06,516 INFO L124 PetriNetUnfolderBase]: 12845/49235 cut-off events. [2024-10-31 22:00:06,517 INFO L125 PetriNetUnfolderBase]: For 899/901 co-relation queries the response was YES. [2024-10-31 22:00:06,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66718 conditions, 49235 events. 12845/49235 cut-off events. For 899/901 co-relation queries the response was YES. Maximal size of possible extension queue 1116. Compared 647538 event pairs, 10080 based on Foata normal form. 0/40940 useless extension candidates. Maximal degree in co-relation 66642. Up to 17156 conditions per place. [2024-10-31 22:00:07,096 INFO L140 encePairwiseOnDemand]: 637/655 looper letters, 78 selfloop transitions, 15 changer transitions 0/597 dead transitions. [2024-10-31 22:00:07,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 597 transitions, 1391 flow [2024-10-31 22:00:07,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:07,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3360 transitions. [2024-10-31 22:00:07,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8549618320610687 [2024-10-31 22:00:07,104 INFO L175 Difference]: Start difference. First operand has 589 places, 600 transitions, 1211 flow. Second operand 6 states and 3360 transitions. [2024-10-31 22:00:07,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 597 transitions, 1391 flow [2024-10-31 22:00:07,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 597 transitions, 1387 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:07,115 INFO L231 Difference]: Finished difference. Result has 589 places, 597 transitions, 1231 flow [2024-10-31 22:00:07,116 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1201, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1231, PETRI_PLACES=589, PETRI_TRANSITIONS=597} [2024-10-31 22:00:07,117 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -22 predicate places. [2024-10-31 22:00:07,117 INFO L471 AbstractCegarLoop]: Abstraction has has 589 places, 597 transitions, 1231 flow [2024-10-31 22:00:07,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 545.5) internal successors, (3273), 6 states have internal predecessors, (3273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:07,120 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:07,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:00:07,120 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 22:00:07,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,121 INFO L85 PathProgramCache]: Analyzing trace with hash -895861133, now seen corresponding path program 1 times [2024-10-31 22:00:07,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:07,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105947019] [2024-10-31 22:00:07,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:07,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:07,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105947019] [2024-10-31 22:00:07,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105947019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:07,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:07,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:07,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37048375] [2024-10-31 22:00:07,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:07,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:07,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:07,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:07,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:07,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 655 [2024-10-31 22:00:07,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 589 places, 597 transitions, 1231 flow. Second operand has 3 states, 3 states have (on average 619.0) internal successors, (1857), 3 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:07,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 655 [2024-10-31 22:00:07,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:07,683 INFO L124 PetriNetUnfolderBase]: 113/1699 cut-off events. [2024-10-31 22:00:07,683 INFO L125 PetriNetUnfolderBase]: For 14/16 co-relation queries the response was YES. [2024-10-31 22:00:07,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 1699 events. 113/1699 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 11076 event pairs, 32 based on Foata normal form. 0/1418 useless extension candidates. Maximal degree in co-relation 1784. Up to 102 conditions per place. [2024-10-31 22:00:07,737 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 16 selfloop transitions, 1 changer transitions 0/592 dead transitions. [2024-10-31 22:00:07,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 586 places, 592 transitions, 1255 flow [2024-10-31 22:00:07,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:07,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1876 transitions. [2024-10-31 22:00:07,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.95470737913486 [2024-10-31 22:00:07,743 INFO L175 Difference]: Start difference. First operand has 589 places, 597 transitions, 1231 flow. Second operand 3 states and 1876 transitions. [2024-10-31 22:00:07,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 586 places, 592 transitions, 1255 flow [2024-10-31 22:00:07,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 592 transitions, 1225 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:00:07,754 INFO L231 Difference]: Finished difference. Result has 581 places, 592 transitions, 1193 flow [2024-10-31 22:00:07,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1191, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1193, PETRI_PLACES=581, PETRI_TRANSITIONS=592} [2024-10-31 22:00:07,757 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -30 predicate places. [2024-10-31 22:00:07,758 INFO L471 AbstractCegarLoop]: Abstraction has has 581 places, 592 transitions, 1193 flow [2024-10-31 22:00:07,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.0) internal successors, (1857), 3 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:07,760 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:07,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:00:07,761 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 22:00:07,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,761 INFO L85 PathProgramCache]: Analyzing trace with hash -467743023, now seen corresponding path program 1 times [2024-10-31 22:00:07,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:07,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306614679] [2024-10-31 22:00:07,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:07,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:07,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306614679] [2024-10-31 22:00:07,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306614679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:07,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:07,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:07,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907378621] [2024-10-31 22:00:07,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:07,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:07,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:07,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:07,963 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 655 [2024-10-31 22:00:07,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 592 transitions, 1193 flow. Second operand has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:07,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 655 [2024-10-31 22:00:07,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:08,254 INFO L124 PetriNetUnfolderBase]: 50/1065 cut-off events. [2024-10-31 22:00:08,255 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-10-31 22:00:08,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 1065 events. 50/1065 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4830 event pairs, 12 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1039. Up to 38 conditions per place. [2024-10-31 22:00:08,276 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/591 dead transitions. [2024-10-31 22:00:08,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 591 transitions, 1221 flow [2024-10-31 22:00:08,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:08,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:08,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1885 transitions. [2024-10-31 22:00:08,280 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9592875318066157 [2024-10-31 22:00:08,281 INFO L175 Difference]: Start difference. First operand has 581 places, 592 transitions, 1193 flow. Second operand 3 states and 1885 transitions. [2024-10-31 22:00:08,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 582 places, 591 transitions, 1221 flow [2024-10-31 22:00:08,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 591 transitions, 1220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:08,290 INFO L231 Difference]: Finished difference. Result has 581 places, 591 transitions, 1194 flow [2024-10-31 22:00:08,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1190, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1194, PETRI_PLACES=581, PETRI_TRANSITIONS=591} [2024-10-31 22:00:08,294 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -30 predicate places. [2024-10-31 22:00:08,294 INFO L471 AbstractCegarLoop]: Abstraction has has 581 places, 591 transitions, 1194 flow [2024-10-31 22:00:08,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:08,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:08,296 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:08,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:00:08,298 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 22:00:08,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:08,298 INFO L85 PathProgramCache]: Analyzing trace with hash 164645723, now seen corresponding path program 1 times [2024-10-31 22:00:08,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:08,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643042978] [2024-10-31 22:00:08,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:08,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:08,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:08,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643042978] [2024-10-31 22:00:08,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643042978] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:08,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:08,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:08,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356735056] [2024-10-31 22:00:08,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:08,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:08,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:08,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:08,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:08,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 655 [2024-10-31 22:00:08,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 591 transitions, 1194 flow. Second operand has 3 states, 3 states have (on average 619.0) internal successors, (1857), 3 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:08,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:08,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 655 [2024-10-31 22:00:08,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:09,038 INFO L124 PetriNetUnfolderBase]: 166/1874 cut-off events. [2024-10-31 22:00:09,039 INFO L125 PetriNetUnfolderBase]: For 33/35 co-relation queries the response was YES. [2024-10-31 22:00:09,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2058 conditions, 1874 events. 166/1874 cut-off events. For 33/35 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 12465 event pairs, 64 based on Foata normal form. 0/1587 useless extension candidates. Maximal degree in co-relation 1981. Up to 169 conditions per place. [2024-10-31 22:00:09,098 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 16 selfloop transitions, 1 changer transitions 0/586 dead transitions. [2024-10-31 22:00:09,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 586 transitions, 1218 flow [2024-10-31 22:00:09,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:09,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:09,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1876 transitions. [2024-10-31 22:00:09,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.95470737913486 [2024-10-31 22:00:09,104 INFO L175 Difference]: Start difference. First operand has 581 places, 591 transitions, 1194 flow. Second operand 3 states and 1876 transitions. [2024-10-31 22:00:09,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 586 transitions, 1218 flow [2024-10-31 22:00:09,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 586 transitions, 1214 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:09,114 INFO L231 Difference]: Finished difference. Result has 576 places, 586 transitions, 1182 flow [2024-10-31 22:00:09,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1182, PETRI_PLACES=576, PETRI_TRANSITIONS=586} [2024-10-31 22:00:09,117 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -35 predicate places. [2024-10-31 22:00:09,117 INFO L471 AbstractCegarLoop]: Abstraction has has 576 places, 586 transitions, 1182 flow [2024-10-31 22:00:09,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.0) internal successors, (1857), 3 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:09,119 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:09,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:00:09,119 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 22:00:09,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1782534799, now seen corresponding path program 1 times [2024-10-31 22:00:09,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:09,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034642875] [2024-10-31 22:00:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:09,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:09,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:09,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034642875] [2024-10-31 22:00:09,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034642875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:09,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:09,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:09,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556271085] [2024-10-31 22:00:09,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:09,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:09,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:09,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:09,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:09,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 655 [2024-10-31 22:00:09,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 586 transitions, 1182 flow. Second operand has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:09,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 655 [2024-10-31 22:00:09,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:09,464 INFO L124 PetriNetUnfolderBase]: 48/837 cut-off events. [2024-10-31 22:00:09,464 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2024-10-31 22:00:09,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 837 events. 48/837 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3270 event pairs, 20 based on Foata normal form. 0/725 useless extension candidates. Maximal degree in co-relation 822. Up to 50 conditions per place. [2024-10-31 22:00:09,484 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/585 dead transitions. [2024-10-31 22:00:09,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 585 transitions, 1210 flow [2024-10-31 22:00:09,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:09,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1885 transitions. [2024-10-31 22:00:09,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9592875318066157 [2024-10-31 22:00:09,488 INFO L175 Difference]: Start difference. First operand has 576 places, 586 transitions, 1182 flow. Second operand 3 states and 1885 transitions. [2024-10-31 22:00:09,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 585 transitions, 1210 flow [2024-10-31 22:00:09,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 585 transitions, 1209 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:09,498 INFO L231 Difference]: Finished difference. Result has 576 places, 585 transitions, 1183 flow [2024-10-31 22:00:09,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1179, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1183, PETRI_PLACES=576, PETRI_TRANSITIONS=585} [2024-10-31 22:00:09,500 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -35 predicate places. [2024-10-31 22:00:09,500 INFO L471 AbstractCegarLoop]: Abstraction has has 576 places, 585 transitions, 1183 flow [2024-10-31 22:00:09,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:09,502 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:09,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:00:09,503 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 22:00:09,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,503 INFO L85 PathProgramCache]: Analyzing trace with hash 286688870, now seen corresponding path program 1 times [2024-10-31 22:00:09,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:09,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558324046] [2024-10-31 22:00:09,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:09,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:09,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:09,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558324046] [2024-10-31 22:00:09,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558324046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:09,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:09,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:09,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454416338] [2024-10-31 22:00:09,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:09,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:09,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:09,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:09,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:09,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 655 [2024-10-31 22:00:09,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 585 transitions, 1183 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:09,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 655 [2024-10-31 22:00:09,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:10,158 INFO L124 PetriNetUnfolderBase]: 157/2220 cut-off events. [2024-10-31 22:00:10,159 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:00:10,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2386 conditions, 2220 events. 157/2220 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 16956 event pairs, 53 based on Foata normal form. 0/1869 useless extension candidates. Maximal degree in co-relation 2309. Up to 123 conditions per place. [2024-10-31 22:00:10,211 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 17 selfloop transitions, 2 changer transitions 0/585 dead transitions. [2024-10-31 22:00:10,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 585 transitions, 1223 flow [2024-10-31 22:00:10,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:10,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1886 transitions. [2024-10-31 22:00:10,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9597964376590331 [2024-10-31 22:00:10,219 INFO L175 Difference]: Start difference. First operand has 576 places, 585 transitions, 1183 flow. Second operand 3 states and 1886 transitions. [2024-10-31 22:00:10,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 585 transitions, 1223 flow [2024-10-31 22:00:10,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 585 transitions, 1219 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:10,238 INFO L231 Difference]: Finished difference. Result has 573 places, 583 transitions, 1185 flow [2024-10-31 22:00:10,240 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1171, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1185, PETRI_PLACES=573, PETRI_TRANSITIONS=583} [2024-10-31 22:00:10,240 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -38 predicate places. [2024-10-31 22:00:10,241 INFO L471 AbstractCegarLoop]: Abstraction has has 573 places, 583 transitions, 1185 flow [2024-10-31 22:00:10,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:10,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:10,243 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:10,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:00:10,244 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 22:00:10,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:10,244 INFO L85 PathProgramCache]: Analyzing trace with hash 630144488, now seen corresponding path program 1 times [2024-10-31 22:00:10,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:10,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137787036] [2024-10-31 22:00:10,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:10,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:10,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:10,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137787036] [2024-10-31 22:00:10,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137787036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:10,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:10,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:10,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902684233] [2024-10-31 22:00:10,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:10,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:10,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:10,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:10,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:10,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 655 [2024-10-31 22:00:10,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 583 transitions, 1185 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:10,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:10,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 655 [2024-10-31 22:00:10,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:10,899 INFO L124 PetriNetUnfolderBase]: 96/1534 cut-off events. [2024-10-31 22:00:10,899 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:00:10,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 1534 events. 96/1534 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9615 event pairs, 20 based on Foata normal form. 0/1315 useless extension candidates. Maximal degree in co-relation 1559. Up to 75 conditions per place. [2024-10-31 22:00:10,950 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 17 selfloop transitions, 2 changer transitions 0/583 dead transitions. [2024-10-31 22:00:10,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 583 transitions, 1225 flow [2024-10-31 22:00:10,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:10,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:10,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1886 transitions. [2024-10-31 22:00:10,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9597964376590331 [2024-10-31 22:00:10,957 INFO L175 Difference]: Start difference. First operand has 573 places, 583 transitions, 1185 flow. Second operand 3 states and 1886 transitions. [2024-10-31 22:00:10,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 583 transitions, 1225 flow [2024-10-31 22:00:10,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 583 transitions, 1225 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:10,971 INFO L231 Difference]: Finished difference. Result has 572 places, 581 transitions, 1191 flow [2024-10-31 22:00:10,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1177, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1191, PETRI_PLACES=572, PETRI_TRANSITIONS=581} [2024-10-31 22:00:10,975 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -39 predicate places. [2024-10-31 22:00:10,975 INFO L471 AbstractCegarLoop]: Abstraction has has 572 places, 581 transitions, 1191 flow [2024-10-31 22:00:10,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:10,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:10,977 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:10,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:00:10,977 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 22:00:10,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:10,978 INFO L85 PathProgramCache]: Analyzing trace with hash -69708871, now seen corresponding path program 1 times [2024-10-31 22:00:10,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:10,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875140589] [2024-10-31 22:00:10,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:10,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:11,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:11,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875140589] [2024-10-31 22:00:11,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875140589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:11,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:11,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:11,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131603917] [2024-10-31 22:00:11,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:11,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:11,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:11,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:11,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:11,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 655 [2024-10-31 22:00:11,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 581 transitions, 1191 flow. Second operand has 3 states, 3 states have (on average 622.6666666666666) internal successors, (1868), 3 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:11,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:11,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 655 [2024-10-31 22:00:11,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:11,834 INFO L124 PetriNetUnfolderBase]: 250/3267 cut-off events. [2024-10-31 22:00:11,834 INFO L125 PetriNetUnfolderBase]: For 31/35 co-relation queries the response was YES. [2024-10-31 22:00:11,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3504 conditions, 3267 events. 250/3267 cut-off events. For 31/35 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 28606 event pairs, 52 based on Foata normal form. 1/2784 useless extension candidates. Maximal degree in co-relation 3426. Up to 202 conditions per place. [2024-10-31 22:00:11,875 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 17 selfloop transitions, 2 changer transitions 0/581 dead transitions. [2024-10-31 22:00:11,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 581 transitions, 1231 flow [2024-10-31 22:00:11,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1886 transitions. [2024-10-31 22:00:11,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9597964376590331 [2024-10-31 22:00:11,880 INFO L175 Difference]: Start difference. First operand has 572 places, 581 transitions, 1191 flow. Second operand 3 states and 1886 transitions. [2024-10-31 22:00:11,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 581 transitions, 1231 flow [2024-10-31 22:00:11,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 570 places, 581 transitions, 1231 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:11,891 INFO L231 Difference]: Finished difference. Result has 571 places, 579 transitions, 1197 flow [2024-10-31 22:00:11,892 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1183, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1197, PETRI_PLACES=571, PETRI_TRANSITIONS=579} [2024-10-31 22:00:11,892 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -40 predicate places. [2024-10-31 22:00:11,892 INFO L471 AbstractCegarLoop]: Abstraction has has 571 places, 579 transitions, 1197 flow [2024-10-31 22:00:11,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.6666666666666) internal successors, (1868), 3 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:11,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:11,895 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:11,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:00:11,895 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 22:00:11,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,895 INFO L85 PathProgramCache]: Analyzing trace with hash 911023066, now seen corresponding path program 1 times [2024-10-31 22:00:11,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370702589] [2024-10-31 22:00:11,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:11,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:11,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370702589] [2024-10-31 22:00:11,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370702589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:11,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:11,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:11,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651651587] [2024-10-31 22:00:11,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:11,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:11,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:11,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:11,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:12,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 655 [2024-10-31 22:00:12,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 571 places, 579 transitions, 1197 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:12,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:12,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 655 [2024-10-31 22:00:12,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:12,580 INFO L124 PetriNetUnfolderBase]: 108/2057 cut-off events. [2024-10-31 22:00:12,580 INFO L125 PetriNetUnfolderBase]: For 2/10 co-relation queries the response was YES. [2024-10-31 22:00:12,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2167 conditions, 2057 events. 108/2057 cut-off events. For 2/10 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13449 event pairs, 8 based on Foata normal form. 1/1770 useless extension candidates. Maximal degree in co-relation 2089. Up to 33 conditions per place. [2024-10-31 22:00:12,620 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/580 dead transitions. [2024-10-31 22:00:12,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 580 transitions, 1231 flow [2024-10-31 22:00:12,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:12,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:12,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1894 transitions. [2024-10-31 22:00:12,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9638676844783715 [2024-10-31 22:00:12,625 INFO L175 Difference]: Start difference. First operand has 571 places, 579 transitions, 1197 flow. Second operand 3 states and 1894 transitions. [2024-10-31 22:00:12,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 580 transitions, 1231 flow [2024-10-31 22:00:12,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 580 transitions, 1231 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:12,636 INFO L231 Difference]: Finished difference. Result has 572 places, 578 transitions, 1199 flow [2024-10-31 22:00:12,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1195, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1199, PETRI_PLACES=572, PETRI_TRANSITIONS=578} [2024-10-31 22:00:12,638 INFO L277 CegarLoopForPetriNet]: 611 programPoint places, -39 predicate places. [2024-10-31 22:00:12,638 INFO L471 AbstractCegarLoop]: Abstraction has has 572 places, 578 transitions, 1199 flow [2024-10-31 22:00:12,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:12,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:12,643 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:12,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:00:12,644 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 133 more)] === [2024-10-31 22:00:12,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:12,644 INFO L85 PathProgramCache]: Analyzing trace with hash 44543776, now seen corresponding path program 1 times [2024-10-31 22:00:12,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:12,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509083481] [2024-10-31 22:00:12,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:12,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:12,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:12,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509083481] [2024-10-31 22:00:12,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509083481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:12,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:12,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:12,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307706317] [2024-10-31 22:00:12,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:12,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:12,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:12,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:12,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:12,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 655 [2024-10-31 22:00:12,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 578 transitions, 1199 flow. Second operand has 3 states, 3 states have (on average 627.6666666666666) internal successors, (1883), 3 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:12,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:12,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 655 [2024-10-31 22:00:12,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand